Steam-turbine governor



` STEAM TURBINE GOVERNOR [N VENTOR 6,5 Wlkzke 5 mi L 6Min /4 TTORNE Y sept. 7 i926; 1,598,905 c. w. DAKE v STEAM llURBIIE GOVERNOR Filed April 10, 1924 2 Sheets-Sheet 2 INVENTO A TTORNE X5 removed.- from` the rotating parts'of-v a fluid Patented Sept. 7, 1926.

T UNI-TED STATES CHARLES W. DAK-E; or CHICAGO, ILLINOIS ram?,` or CHICAGO, ILLINOIS,

, ASSIGNOR TOfTI-IE PYLE-NATIONAL GOM- A CORPORATION' OF ILLINOIS.

sTEAM-TU'RBINE GOVERNOR.

Y yApplication led April 10, 1924. '.SeralNo. 705,466.

This invention. relates: to steam turbine governors, and particularly to a-turbine governor-which is assembled as a unit and which may beattachedi-to-andA4 detached from and turbine,A as, al unit, without the disturbance of any ofA the remaining parts of the turbine. Another-object is to provide a governor oliV the described type which may be adjusteddiora certain, or'predetermined rotative speed before it is attachedto theV turbine.. `Another. objectisfto `provide a complete governor' unit which may be insertedinto the hollow end of a turbine shaft.- Other objects will appear from. Vtime totime in the course of.Y the-specification andA claims.

Ifillustrate theinvention more or less diagrannnaticall-y` `r inA the accompanying draw- Figure. l isvan.az'riallsectionf;

t Figui-'e2 isa view ofthe. governor sleeve with*l parts in section;V f f Figurer 3 is. a *view of the ygovernor plunger, and Y n Figure-Lisa detail..

Like parts are indicatedvby. like. symbols throughout ther speciiication and drawings.

I, do; not. herein describe or show thedetails. ofthe turbine. beyond indicating the partsin. actual Contactu with the governor assembly herein describedandl claimed,.and it will be understood. that the entire turbine assembly'is` surrounded by the `usual housing, not herein:shownt A is any suitable turbineshaftivrotated by motor meansV notherein shown', terminating in. a hO11ow portion. Af1`,opposite the.' end of `the .shaft which connects with. the motor Vmeans, which. is externally screwthreadedas atzA? toreceive theV hub A. ofthe wheel or rotor A* oitY they turbine, upon which are mounted; anyssuitable buckets A5 adapted to receive the.l impact of jets .ofv steam directed, there againstiby any suitable mechanism, and tonconvertfthe Vimpact-.ofithel steam into a. rotary. niovementof. the rotor A* and the shaftiA;y A* Y Y f Thev hollow. endlof the'shaft is interiorly screwthreadedfasat. ,i toreceive the screwthreaded b B2.. l Secured toitheouter, end. offsuchsleeve or. integral with it; isJthe: governory collar B. in the, interior of .which -is. mounted a hardenedVIV steel c'ollarz-lB". VThe governor portion Y PB? ,offs .the governor sleeve sleeve continues beyond the collar B3,kterminating in-the hollow, open-ended extension B5; The body ofthe sleeveis slottedas at B6, the purpose of the slots being later indicated.r f

Mounted for axial `movement within the sleeve B2 is a a hollow cylindrical portion C, to one end of which is pinned, as by C1, the inwardly. penetrating, cylindrical portion C2 of the thrust collar C3, which is of somewhat greater diameter than the governor sleeve. Engaging. its outer periphery, or rdesiredintegral with it, is a surrounding sleeve C4, the inner edge of which is con- Y tact-ed' by. the toes D- ofv the governor weights D1, whichare pivoted upon the knifeV edge portionsD2 which contact ledges` D3 in the collar. B4 and which are positioned on said ledges, for example by the pins D4.

yE isa .collar of carbon or other suitable material which requires no lubrication` or is self-lubricating, and is engaged by the thrust collar C3. It is mounted, for example,

f in the carrier E1, which in turn is secured to the arm .E2 piv'oted:` aboutthe bearing element E? which is held, by any suitable means, against movement` in relation to the shaft and rotor.. The collar E is provided with ajlever extension E4 extending-to'any suitable governor valve, not herein illustrated and not forming partl of the present invention, but which is adapted to increase or diminish the flow ofmot-iveiluid, in response to the thrust of the collar C3 against the car- Y bon ring, andthusin responseto the speed of V.rotation ofthe `turbine shaft and generator.

Projecting inwardly from the opposite end .of the governor plunger C isa screwthreaded extension G, of substantially smaller diameter, which is in screwthreaded relation withthe governor spring nut G1, whichis itself screwthreaded intotheend ofthe coiled .tension governor spring G2, the opposite end of which is in screwthreaded relation with the governor spring support G3, thek peripheral flange G4 ofwhich engages the inner governor plunger comprising` the .transverse pin l :sisk

sis

edge of the governor sleeve B2.v The governorspringnut G1 is axially adjustable along the screwthreaded ,extension G, in response to rotationof. the governor plunger Y C, butl'is itself held against rotation,l` for eX- `ample by the lugs or screws G10, which project outwardly into the Vslots B6.

The thrust collar C3 is provided with an extension C10, which may be notched or channeled as at C12 to receive the end of a screw-driver or may be shaped or socketed in any suitable manner to permit its rotation by any suitable tool.

It will be realized that while I have illustrated herein a working device, and one which is fully operative, nevertheless many changes might be made in the size, shape, number and disposition of parts without departing from the spirit of my invention, and that I wish my description and 'drawings to be taken as in a broad sense illustrative and not as a limitation to the specific form and details shown.

The use and operation of my invention are as follows:

In fluid turbines, and particularly in steam turbines for use with steam locomotives to operate electric head lights, a very careful regulation or governing of the speed of rotation is necessary in order that the light beam of the head light may be of uniform intensity and of high power. Turbines of this class are exposed to hard usage and are located on an almost constantly moving and highly vibrating base, and yet must operate with the greatest exactness and efficiency, so thatwhen repairs to the governing mechanism are necessary it is important that they be made quickly and easily, and quick and easy regulation of the governing apjnrratus is vital. I have shown a peculiarly simple and efficient governing mechanism Ywhich is detachable as a unit from the tur-- bine, which may be adjusted before being applied to the turbine, and which may easily be adjusted while applied to the turbine. Such a governing mechanism'is peculiarly ellicient for the railroad work for which it has been developed.

VEhe entire governor assembly may be reiuoved simply by-unscrewing the sleeve B2 from the hollow of the turbine shaft and removin the whole governor assembly bodily tom the shaft. The tension of the `Governor spring may be adjusted before the a sembly is inserted into the turbine, and it may also be adjusted after such insertion, since the carbon ring carrier El is centrally apertured to permit the access of a screw driver or other instrument to the extension C10 of the thrust collar C3.

I claim:

1. In a governor for fluid turbines, a hollow ended turbine shaft, a governor assembly mounted as a unit therein, and removable as a unit therefrom, comprising a governor sleeve, a governor plunger/ axially movable therein, a governor collar mounted upon said sleeve, governor weights pivoted 'in said' collar, a thrust connection between the governor weights and the plunger, a governor spring mounted within the governor sleeve, and a connection between said spring and the governing plunger.

In a governor for fluid turbines, a hollow ended turbine shaft, a governor assembly mounted as a unit therein, and removable as a unit therefrom, comprising a governor sleeve, a governor plunger axially movable therein, a governor collar mounted upon said sleeve, governor weights pivoted in said collar, a thrust connection between the governor weights and the plunger, a governor spring mounted within the governor sleeve adapted to exert tension upon saidplunger, and means for adjusting such tension.

3. In a governor for fluid turbines, a hollow ended turbine shaft, a governor sleeve penetrating said hollow end, a governor plunger axially movable therein, a governor collar mounted upon said sleeve, governor weights pivoted in said collar, a thrust connection between the governor weights and the plunger, a governor spring mounted within the governor sleeve, and a connection between said spring and the governor plunger.

4. In a governor for `fluid turbines, a hollow ended turbine shaft, a governor sleeve penetrating said shaft, a governor plunger axially movable therein, a governor collar mounted uponsaid sleeve, governor weights pivoted in said collar, a ,thrust connection between the weights andV the plunger, a coiled tension spring secured at one end to said sleeve and at the other end to said plunger.

5. In a governor for fluid turbines, a hollow ended turbine shaft, a governor sleeve penetrating said shaft, a governor plunger axially movable therein, a governor collar mounted upon said sleeve, governor weights pivoted in said collar, a thrust connection between the weights and the plunger, a coiled tension spring secured at oneend to said sleeve and at thev'otherv end to said plunger, and means for adjusting the tension of the sprin'.

G. In a governor for fluid turbines, a hollow ended turbine shaft, a governor sleeve penetrating said shaft, a governor' plunger axially ymovable therein, a governor collar mounted upon said sleeve, governor weights pivoted in said collar, a thrust connection between the weights and the plunger, a coiled tension spring secured at one end to said sleeve and at the other end to said plunger, and means for adjusting the tension of the spring comprising an extension from said plunger, an element axially adj ustable along said extension,- and a constant connection between said vadjustable element and the governor spring.V Y

7. In a governor'for uid turbines, a hollow ended turbine shaft, a governor sleeve penetratingsaid shaft, a governor plunger axially movable therein, a governor collar mounted upon said sleeve, governor weights pivoted in said collar, a thrust oonneotion between the weights and the plunger, alV

coiled tension spring securedV at one end to said sleeve and at Athe other end to said plunger, and means for adjusting the tensionl of the spring comprising a screwthreaded extension from said' plunger, Va

screwtlireaded collar ymounted thereon, a

connection between said collar and said spring, and Vmeans for imparting relative rotation to said plunger and collar' to move them axially in relation to each other. 8. In a governor for fluid turbines, a hoL low ended turbine shaft, a governor sleeve penetrating said shaft, a governor plunger' said sleeve and at the other end to said plunger, and means for adjusting the tension of the spring comprising asorewth'readed extension from said plunger, a screwthreaded collar mounted thereon, a connection between said collar and said spring, means for preventing rotation of said collar, and means for rotating said plunger.

9. In a governor for Huid turbines, a hollow ended turbine shaft, a governor assembly, mountedas a unit therein rand axially removable as a unit therefrom,

the turbine shaft, a governor plunger axially movable therein, a governor spring mounted within such sleeve, and centrifugal means operative against said governor plunger in response to rotation of the shaft. o

vSigned at Chicago county of Cook and State of Illinois, this 7th day'of April 1924. CHARLES W. DAKE.

including a governor sleeve positioned 1n the hollow of 

